There are a number of reasons why they might not appear and these include:
1. The confirmation page placement is disabled. Check that the placement is enabled.
2. The confirmation page placement has recently been enabled. After enabling, it can take up to 10 minutes to begin appearing.
3. The shipping address may be from an unsupported region. To ensure that all offers are geographically relevant to the customer, we will not show an offer to a customer from an unsupported region.
Supported regions include: United States, Australia, Canada, Denmark, Finland, France, Germany, Ireland, Japan, Netherlands, New Zealand, Norway, Singapore, Spain, Sweden, and the United Kingdom